Briefly explain how one historical event or development in the period 1848 to 1861 that is not explicitly mention in the exerpt could be used to support wineapple's interpretation.

The major impact third parties have on presidential elections has been to.. a. encourage larger vote turnout b. recruiter leader from the democratic and republican party to run for president c. generate increased party identification among the electorate d. developing issues that are later adopted by the major political parties e. drawn off of votes from the major parties to throw election into the house representatives